diff --git a/lib/cpus/aarch64/denver.S b/lib/cpus/aarch64/denver.S
index 3e238a1c19e6c9e4834b4ce0ce5eefa9696b61c3..fcfae8ff667f687682072ddfe64473fd655c2ad6 100644
--- a/lib/cpus/aarch64/denver.S
+++ b/lib/cpus/aarch64/denver.S
@@ -59,7 +59,6 @@ func denver_enable_dco
 	mov	x1, #1
 	lsl	x1, x1, x0
 	msr	s3_0_c15_c0_2, x1
-	isb
 	ret
 endfunc denver_enable_dco